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State Of Economy Probability Stk A Stk B Stk C
Of State of Econ.
Boom .65 .08 .02 .33
Bust .35 .14 .24 -.06
a) What is the explained return on an equally weighted portfolio of these three stocks?
b) What is the variance of a portfolio invested 20 percent each in A and B and 40 percent in C?
Compare the means of two populations using 96% confidence interval:
Bougainvilleas, mean growth rate was 2.23 inches/week and sample standard deviation was 0.77 inches/week. Determine a 90% confidence interval for mean growth rate of all Bougainvilleas.
Explain an organizational scenario where quantitative (ratio level of measurement) information is or could be used to make management decisions about creating, maintaining, or improving quality.
What was the highest score earned on the exam? According to Chebyshev's Theorem, how many students scored between 42 and 74?
CPI and Subway Fare Find the best predicted cost of subway fare when the consumer Price Index (CPI) is 182.5 (in the year 2000).
Is the sample size large enough to construct a valid confidence interval for the proportion of debit cardholders who have used their card in making purchases over the Internet?
If one invested in Stock A, Determine standard deviation of percentage return?
Examine the residual files and produce appropriate residual plots to examine the assumptions. Are the Level-1 residuals normally distributed? Are the level-2 residuals multivariate normal? How do you know?
If person is selected at random determine the probability that he/she has enzyme level less than 4.0 units/ml?
This linear regression model was fitted to a sample of size 50 to produce the following regression equation: yhat = 145 + 1.2x1 + 300x2.
The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience.
At a 5% level of significance, is there enough evidence from this survey to conclude that more than half of all adults would rather have $100 than a day off?
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